If you ordered your Dark Horse with the 6-speed manual, you've got the TREMEC TR-3160 gearbox with a factory transmission cooler — and it comes with automatic rev matching built in. This trips up a lot of new owners, so here's the plain-English rundown plus a question for the crowd.
WHAT REV MATCHING ACTUALLY DOES
When you pull the clutch in and change gears, the system automatically blips the throttle to bring engine RPM in line with the gear you're selecting. It's most noticeable on downshifts (say 4th to 3rd coming into a corner): instead of the driveline jerking as the clutch re-engages, the revs are already matched, so the shift comes out smooth. Think of it as the car doing the heel-and-toe throttle blip for you.
It's on by default from the factory, and a lot of owners drive around for weeks not realizing the car is doing it.
HOW TO TURN IT ON / OFF
On the S650 cars this lives in the touchscreen under the Track Apps / performance settings, and on the manual it can be tied to your drive mode (so you can have it behave differently in Normal vs. Track, or save your preference in a Custom mode). Menus have shifted a little across model years and software updates, so the reliable move is to check your owner's manual for the exact path on YOUR car rather than trusting a screenshot from a different year. If anyone wants to post the exact menu steps for their specific build/software version below, that helps the next owner searching this.
Quick note: this is the electronic auto rev-match feature, separate from you doing your own heel-toe. Turning it off doesn't hurt anything — it just hands the throttle blips back to your right foot.
THE DISCUSSION
- Do you leave auto rev matching ON, or turn it off and blip yourself?
- If you row your own downshifts, does it get in the way or help?
- New manual owners: did you even know it was on?
Curious how the split shakes out here. Drop your setup (year, Normal/Track/Custom) and where you land on it.
(As always with anything drivetrain/warranty related, defer to your owner's manual and dealer for the final word on your specific car.)